55623230520 has 384 divisors, whose sum is σ = 198264568320. Its totient is φ = 12400819200.

The previous prime is 55623230513. The next prime is 55623230549. The reversal of 55623230520 is 2503232655.

55623230520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88150605 + ... + 88151235.

It is an arithmetic number, because the mean of its divisors is an integer number (516313980).

Almost surely, 2^55623230520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55623230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99132284160).

55623230520 is an abundant number, since it is smaller than the sum of its proper divisors (142641337800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55623230520 is a wasteful number, since it uses less digits than its factorization.

55623230520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 55623230520 in words is "fifty-five billion, six hundred twenty-three million, two hundred thirty thousand, five hundred twenty".